This book provides a comprehensive narrative history of U.S. involvement in Southeast Asia, from 1942 to 1975--with a concluding section that traces U.S.-Vietnam relations from the end of the war in 1975 to the present. Unlike most general histories of U.S. involvement in Vietnam--which are either conventional diplomatic or military histories--this volume synthesizes the perspectives to explore both dimensions of the struggle in greater depth, elucidating more of the complexities of the U.S.-Vietnam entanglement. It explains why Americans tried so hard for so long to stop the spread of Communism into Indochina, and why they failed.